Unfiltered aquarium



FIG. 1 is a perspective view of the unfiltered aquarium.

FIG. 2 is a front view of the unfiltered aquarium.

FIG. 3 is a rear view of the unfiltered aquarium.

FIG. 4 is a right side view of the unfiltered aquarium.

FIG. 5 is a left side view of the unfiltered aquarium.

FIG. 6 is a top view of the unfiltered aquarium; and,

FIG. 7 is a bottom view of the unfiltered aquarium.

The broken lines in the drawings define boundary lines and form no part of the claimed design. 

CLAIM We claim the ornamental design for an unfiltered aquarium, as shown and described. 